LiMnO2 cathode stabilized by interfacial orbital ordering for sustainable lithium-ion batteries

Zhu, Xiaohui; Meng, Fanqi; Zhang, Qinghua; Li, Xue; Zhu, He; Lan, Si; Liu, Qi; Zhao, Jing; Zhuang, Yibo; Guo, Qiubo; Liu, Bo; Gu, Lin; Lu, Xia; Ren, Yang; Xia, Hui

doi:10.1038/s41893-020-00660-9

Cited by 192 publications

(131 citation statements)

References 37 publications

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“…[ 5–7 ] In contrast, a lithium metal anode is limited due to several issues, including limited lithium resources, a lower volumetric capacity (2061 mAh cm −3 ), and dendrite growth that can induce severe side reactions and poor safety during cycling, although lithium exhibits the lowest electrode potential. [ 8–10 ] However, the design of high‐energy‐density RMBs requires the development of high‐performance magnesium‐free cathode materials by using the Mg metal anode. [ 11,12 ]…”

Section: Introductionmentioning

confidence: 99%

A Pyrite Iron Disulfide Cathode with a Copper Current Collector for High‐Energy Reversible Magnesium‐Ion Storage

Yuan

Zhang²,

Wang

et al. 2021

Advanced Materials

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Owing to its low cost, high theoretical capacity, and environmentally friendly characteristics, pyrite FeS2 demonstrates promise as a cathode material for high‐energy metal‐anode‐based rechargeable batteries. When it is used in a rechargeable magnesium battery (RMB), the electrode couple exhibits an extremely low theoretical volume change upon full discharge. However, its electrochemical Mg‐ion storage is considerably hindered by slow reaction kinetics. In this study, a high‐performance FeS2 cathode for RMBs using a copper current collector is reported, which is involved in cathode reactions via a reversible redox process between copper and cuprous sulfide. This phase transformation with the formation of copper nanowires during discharge activates the redox reactions of FeS2 via a two‐step and four‐electron Mg‐ion transfer that dominates the cathode reactions. As a result, the as‐prepared FeS2 nanomaterial cathode delivers a significantly enhanced reversible capacity of 679 mAh g−1 at 50 mA g−1. The corresponding energy density of 714 Wh kg−1 is superior to those of all previously reported metal chalcogenide cathodes in RMBs or hybrid batteries using a Mg metal anode. Notably, the as‐assembled FeS2–Mg battery can operate over 1000 cycles with a good capacity retention at 400 mA g−1.

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Section: Introductionmentioning

confidence: 99%

A Pyrite Iron Disulfide Cathode with a Copper Current Collector for High‐Energy Reversible Magnesium‐Ion Storage

Yuan

Zhang²,

Wang

et al. 2021

Advanced Materials

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“…Mn‐rich layered oxide possesses a capacity comparable with the current commercial LCO and Ni‐rich NMC and NCA cathodes, and has become a research hotspot as the promising LIB cathode. [ 21,22 ] As the qualitative comparison regarding the performance between the Mn‐rich layered oxide and other representative LIB cathodes shown in Figure S2 (Supporting Information), it is obvious that the advantages of this kind of material in terms of both the low cost and the high capacity are much prominent. Typical Mn‐rich layered oxide is the nonstoichiometric Li‐excess Li(Li 1/3 Mn 2/3 )O 2 (or Li 2 MnO 3 ), whose electrochemical activation process unfortunately imposes serious limitations on the cathode performance with poor cyclic capacity, rapid voltage decay, and structural damage.…”

Section: Introductionmentioning

confidence: 99%

Revealing Roles of Co and Ni in Mn‐Rich Layered Cathodes

Huang

Lin

Zhang

et al. 2021

Advanced Energy Materials

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Pressing demand for reducing the dependence of the costly Co and Ni elements has recently made Mn‐rich layered oxides much more attractive as potential cathodes for rechargeable lithium‐ion batteries. Although the Co and Ni effects in Ni‐rich cathodes are investigated in detail, there is still a serious lack of fundamental understandings of the influences of the Co and Ni substitution on the structural and electrochemical properties of the Mn‐rich layered cathodes. Here, Co‐substituted, Co and Ni co‐substituted, and Ni‐substituted Mn‐rich layered cathodes Li(Mn, Ni, Co)O2 are consciously designed to explore the roles of Co and Ni. These results elucidate that Co4+ is destructive for the structural stability of Mn‐rich cathodes due to the increased instability in the lattice oxygen, especially at high potentials, thereby delivering poor cycling stability, while Ni substitution of Co introduces Li/Ni mixing to enhance the lattice oxygen stability and suppress phase segregation and irreversible phase transition, leading to much improved cycling stability. These findings complement the elemental chemistry of the Co‐, Ni‐, and Mn‐based layered oxide cathodes, and benefit the development of Co‐free Mn‐rich layered cathode materials for future rechargeable lithium‐ion batteries.

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“…[2] Considering that most rechargeable batteries rely on critical mineral commodities such as lead, cobalt, and nickel, however, there are tremendous problems that limit their sustainable development, including environmental pollution and health implications for people living with artisanal mining, as well as the anticipated rising prices of rare minerals. [3] Beyond that, the production of electrode materials usually involves smelting and hightemperature sintering, which feature high energy consumption and low efficiency. [4] To achieve sustainable development of the battery technologies, it is vital to replace the traditional Pb/Co/Ni redox centres in the electrodes with low-cost, non-toxic, and environmentally friendly elements, such as iron, to replace the traditional Pb/Co/Ni redox centres in the electrode.…”

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confidence: 99%

Processing Rusty Metals into Versatile Prussian Blue for Sustainable Energy Storage

Peng

Zhang

Wang

et al. 2021

Advanced Energy Materials

109

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with the large-scale applications of electric vehicles and stationary energy storage systems, the global battery market has grown explosively in recent years, and the whole shipment volume is expected to step from the era of GWh into TWh in the next few years. [2] Considering that most rechargeable batteries rely on critical mineral commodities such as lead, cobalt, and nickel, however, there are tremendous problems that limit their sustainable development, including environmental pollution and health implications for people living with artisanal mining, as well as the anticipated rising prices of rare minerals. [3] Beyond that, the production of electrode materials usually involves smelting and hightemperature sintering, which feature high energy consumption and low efficiency. [4] To achieve sustainable development of the battery technologies, it is vital to replace the traditional Pb/Co/Ni redox centres in the electrodes with low-cost, non-toxic, and environmentally friendly elements, such as iron, to replace the traditional Pb/Co/Ni redox centres in the electrode. [5] Meanwhile, developing more cost-efficient electrode manufacturing processes, such as solution phase synthesis, is of equal importance.To reach a closed-loop material system and meet the urgent requirement of sustainable energy storage technologies, it is essential to incorporate efficient waste management into designing new energy storage materials. Here, a "two birds with one stone" strategy to transform rusty iron products into Prussian blue as high-performance cathode materials, and recover the rusty iron products to their original status, is reported. Owing to the high crystalline and Na + content, the rusty iron derived Prussian blue shows a high specific capacity of 145 mAh g −1 and excellent cycling stability over 3500 cycles. Through the in situ X-ray diffraction and in situ Raman spectra, it is found that the impressive ion storage capability and stability are strongly related to the suppressed structure distortion during the charge/discharge process. The ion migration mechanism and the possibility to serve as a universal host for other kinds of ions are further illuminated by density functional theory calculations. This work provides a new strategy for recycling wasted materials into high value-added materials for sustainable battery systems, and is adaptable in the nanomedicine, catalysis, sensors, and gas storage applications.

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LiMnO2 cathode stabilized by interfacial orbital ordering for sustainable lithium-ion batteries

Cited by 192 publications

References 37 publications

A Pyrite Iron Disulfide Cathode with a Copper Current Collector for High‐Energy Reversible Magnesium‐Ion Storage

A Pyrite Iron Disulfide Cathode with a Copper Current Collector for High‐Energy Reversible Magnesium‐Ion Storage

Revealing Roles of Co and Ni in Mn‐Rich Layered Cathodes

Processing Rusty Metals into Versatile Prussian Blue for Sustainable Energy Storage

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